CN113426891B - Oil seal transition sleeve and processing expansion tool thereof - Google Patents
Oil seal transition sleeve and processing expansion tool thereof Download PDFInfo
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- CN113426891B CN113426891B CN202110568087.2A CN202110568087A CN113426891B CN 113426891 B CN113426891 B CN 113426891B CN 202110568087 A CN202110568087 A CN 202110568087A CN 113426891 B CN113426891 B CN 113426891B
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- lower die
- bottom plate
- expanding
- oil seal
- pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
- B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
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Abstract
The invention relates to the field of transition sleeves, in particular to an oil seal transition sleeve which is of a thin-wall hollow structure, and comprises a connecting pipe, a transition pipe and a guide pipe, wherein one end of the transition pipe is provided with the connecting pipe, the other end of the transition pipe is provided with the guide pipe, the diameter of the connecting pipe is larger than that of the guide pipe, the transition pipe is in a round table shape, and an expanding tool for processing the oil seal transition sleeve comprises a lower die lower seat, a lower die upper seat, a supporting column, a positioning seat, a spring, a positioning rod, an expanding die and an upper die bottom plate which moves up and down. The invention provides an oil seal transition sleeve and an expanding tool for processing the same, which are reasonable in structure design, convenient to process and manufacture, reasonable in structure design, capable of efficiently processing the oil seal transition sleeve meeting actual requirements and conveniently processing the oil seal transition sleeves with different specifications after replacing the tool, and therefore, the actual processing requirements can be better met.
Description
Technical Field
The invention relates to the technical field of transition sleeves, in particular to an oil seal transition sleeve and an expanding tool for processing the same.
Background
The electromagnetic valve of the electric control shock absorber needs to be used for an oil seal transition sleeve when the oil seal is assembled, so that the integrity of the oil seal can be guaranteed to the greatest extent to improve the sealing effect.
The traditional oil seal transition sleeve is formed by machining a metal round rod or a non-metal round rod according to the requirement, one end of the machined traditional oil seal transition sleeve is similar to a bullet head shape, the other end of the machined traditional oil seal transition sleeve is tubular and wraps a part when in use, the pipe wall is thin, the pipe hole is deeper, the unique structure of the traditional oil seal transition sleeve causes difficult machining, the machining is easy to discard, in addition, in the shock absorber industry, the shock absorber products are numerous in types, almost every shock absorber product needs a special oil seal transition sleeve, and therefore great inconvenience is brought to the machining and management use of the oil seal transition sleeve. The present invention has been made in view of the above-mentioned drawbacks.
Disclosure of Invention
In order to overcome the defects of the background technology, the invention provides the oil seal transition sleeve and the expansion tool for processing the oil seal transition sleeve, which are reasonable in structural design, convenient to process and manufacture and reasonable in structural design, can be used for efficiently processing the oil seal transition sleeve meeting actual requirements and can be used for conveniently processing the oil seal transition sleeves with different specifications after the tool is replaced.
The technical scheme adopted by the invention is as follows: the oil seal transition sleeve is of a thin-wall hollow structure and comprises a connecting pipe, a transition pipe and a guide pipe, wherein one end of the transition pipe is provided with the connecting pipe, the other end of the transition pipe is provided with the guide pipe, the diameter of the connecting pipe is larger than that of the guide pipe, and the transition pipe is in a round table shape.
In order to facilitate processing, the oil seal transition sleeve is made of a thin-wall stainless steel tube, and the connecting tube and the transition tube are formed by processing through an expanding procedure.
Preferably, the end of the guide tube far away from the transition tube is rolled to form a round corner.
In order to facilitate the processing of the expansion port and have enough structural strength, the oil seal transition sleeve is made of a thin-wall stainless steel tube with the thickness of 0.2 mm.
The utility model provides an oil blanket transition is bloated mouthful frock for cover processing, is including lower mould lower carriage, lower mould upper carriage, support column, positioning seat, spring, locating lever, bloated mouthful mould and the last die bottom plate of activity from top to bottom, the bottom of support column sets firmly on the lower mould lower carriage, the top detachably of support column sets firmly the lower mould upper carriage, the bottom detachably of positioning seat sets firmly the middle part of lower mould lower carriage, the bottom of positioning seat has the installation cavity, the top have with the mounting hole of locating lever adaptation, the bottom of locating lever has cylindrical sliding table and the diameter of sliding table is greater than the diameter of locating lever, the sliding table is installed in the installation cavity, the locating lever of sliding table top side upwards passes the mounting hole, the spring is installed in the top of spring conflict in the bottom of sliding table, the bottom conflict in the lower mould lower carriage, be equipped with on the lower mould upper carriage just to the supporting hole of locating lever, the upper die bottom plate is located the top of lower mould upper carriage, the bottom has the diameter of sliding table and can pass through bloated die bottom.
For being convenient for expand mouth processing and form connecting pipe and transition pipe, the expansion die includes the expansion mouth pole and is located the expansion mouth of expansion mouth pole bottom, the top of expansion mouth pole passes through threaded connection and fixes go up the bottom of die baseplate, the expansion mouth includes guide head, first expansion mouth and second expansion mouth, the guide head is including guide table and guide pole, the bottom of expansion mouth pole is equipped with the second expansion mouth, the bottom of second expansion mouth is equipped with first expansion mouth, the bottom of first expansion mouth is equipped with the guide pole, the bottom of guide pole is equipped with the guide table, guide table and first expansion mouth all are round platform shape, the diameter of guide pole with the diameter of locating lever is the same, the diameter of guide pole is less than the diameter of expansion mouth pole, the diameter of expansion mouth pole is less than the diameter of second expansion mouth, the diameter of first expansion mouth top is the same with the diameter of second expansion mouth, the diameter of first expansion mouth bottom is the same with the guide pole, the bottom of guide table is equipped with the guide table, the outer chamfer of the top of second expansion mouth.
For the frock of being convenient for dismouting change, the positioning seat divide into first positioning seat and second positioning seat, the bottom of first positioning seat is fixed through threaded connection the middle part of lower mould lower seat, the second positioning seat passes through threaded connection to be fixed the top of first positioning seat, the middle part of second positioning seat runs through the formation the mounting hole, the middle part of first positioning seat runs through the formation the installation cavity.
In order to facilitate threaded connection of the first positioning seat and the second positioning seat, a first connecting sleeve is arranged at the top of the first positioning seat, external threads are arranged on the outer wall of the first connecting sleeve, an annular connecting groove is formed in the outer side of the first connecting sleeve, a second connecting sleeve matched with the connecting groove is arranged at the bottom of the second positioning seat, and internal threads matched with the external threads are arranged on the inner wall of the second connecting sleeve.
Preferably, the lower die lower seat comprises a first lower die lower bottom plate and a second lower die lower bottom plate, a first through installation groove and a second through installation groove are formed in the first lower die lower bottom plate, the bottom of the first positioning seat is installed in the first installation groove, the bottom of the support column is installed in the second installation groove, the second lower die lower bottom plate is fixedly arranged on the bottom side of the first lower die lower bottom plate, a first threaded hole is formed in the bottom of the first positioning seat, a first countersunk through hole right facing the first threaded hole is formed in the second lower die lower bottom plate, a second countersunk through hole right facing the second threaded hole is formed in the bottom of the support column, a second lower die upper bottom plate comprises a first lower die upper bottom plate and a second lower die upper bottom plate, a third through installation groove is formed in the first lower die upper bottom plate, the top of the support column is installed in the third installation groove, a second lower die upper bottom plate is fixedly arranged on the bottom side of the first lower die upper bottom plate, a second countersunk through hole is formed in the second lower die upper bottom plate is right facing the second lower die, and a third expansion die is arranged on the middle of the second lower die lower bottom plate, and the expansion die is provided with a second countersunk through hole.
Preferably, the diameter of the first supporting hole is the same as the diameter of the second expanding part, the diameter of the second supporting hole is larger than that of the first supporting hole, and the top of the second supporting hole is chamfered.
In summary, the invention has the beneficial effects that:
1. the oil seal transition sleeve comprises a connecting pipe, a transition pipe and a guide pipe, has reasonable structural design, can well play a role in transition, can ensure the integrity of an oil seal to the greatest extent so as to improve the sealing effect, is further beneficial to improving the product quality of the shock absorber, is made of a thin-wall stainless steel pipe, is convenient to process and form the connecting pipe and the transition pipe through an expanding procedure, is convenient to process, is not easy to discard, and can greatly improve the processing efficiency;
2. the expansion tool for processing the oil seal transition sleeve comprises a lower die lower seat, a lower die upper seat, a supporting column, a positioning seat, a spring, a positioning rod, an expansion die and an upper die bottom plate which moves up and down, wherein the expansion die comprises an expansion rod and an expansion head, and the expansion head comprises a guide head, a first expansion head and a second expansion head;
3. the lower die lower seat comprises a first lower die lower bottom plate and a second lower die lower bottom plate, the lower die upper seat comprises a first lower die upper bottom plate and a second lower die upper bottom plate, processing and manufacturing are convenient, actual assembly is convenient, stability of a structure is improved, the positioning seat is divided into a first positioning seat and a second positioning seat, the first positioning seat and the second positioning seat are in threaded connection with each other through a first connecting sleeve and a second connecting sleeve, dismounting is convenient, when oil seal transition sleeves of different specifications are required to be processed, only the positioning rod, the second positioning seat, the expansion die, the first lower die upper bottom plate and the second lower die upper bottom plate are required to be dismounted and replaced, and the tool is convenient and rapid to replace, so that oil seal transition sleeves of different specifications can be processed conveniently for different types of shock absorber products, and the efficiency can be greatly improved.
The invention is further described below with reference to the drawings and detailed description.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of the oil seal transition sleeve of the present invention;
FIG. 2 is a schematic diagram of the whole structure of an expanding tool for processing an oil seal transition sleeve;
FIG. 3 is a schematic view of the structure of the expansion die of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 2 at A;
FIG. 5 is a partial enlarged view at B in FIG. 2;
FIG. 6 is an enlarged view of a portion of FIG. 2 at C;
the figure shows that the device comprises a 1-oil seal transition sleeve, a 2-connecting pipe, a 3-transition pipe, a 4-guiding pipe, a 5-round corner part, a 6-supporting column, a 7-spring, an 8-positioning rod, a 9-expansion die, a 10-upper die bottom plate, an 11-mounting cavity, a 12-mounting hole, a 13-sliding table, a 14-expansion die rod, a 15-first expansion part, a 16-second expansion part, a 17-guiding table, a 18-guiding rod, a 19-first positioning seat, a 20-second positioning seat, a 21-first connecting sleeve, a 22-second connecting sleeve, a 23-first lower die bottom plate, a 24-second lower die bottom plate, a 25-first mounting groove, a 26-second mounting groove, a 27-first countersunk through hole, a 28-second threaded hole, a 29-second countersunk through hole, a 30-first lower die top plate, a 31-second lower die bottom plate, a 32-third mounting groove, a 33-third threaded hole, a 34-third countersunk through hole, a 35-first support hole, a 36-second support hole and a 37-first threaded hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 6 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In order to make the objects, technical solutions and advantages of the present invention become more apparent, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1 to 6, the oil seal transition sleeve 1 disclosed in this embodiment is of a thin-wall hollow structure, the oil seal transition sleeve 1 includes a connecting pipe 2, a transition pipe 3 and a guiding pipe 4, one end of the transition pipe 3 is provided with the connecting pipe 2, the other end is provided with the guiding pipe 4, the diameter of the connecting pipe 2 is greater than that of the guiding pipe 4, and the transition pipe 3 is in a truncated cone shape. In the technical scheme, when the electromagnetic valve of the electric control shock absorber is assembled with the oil seal, the oil seal is assembled onto the connecting rod from one end of the connecting rod, the hollow part of the oil seal transition sleeve 1 can be conveniently sleeved onto the connecting rod, the oil seal transition sleeve 1 adopts a thin-wall structure, the oil seal can be well transited, the oil seal can be prevented from being enlarged, the integrity of the oil seal is guaranteed, the oil seal transition sleeve 1 is firstly installed onto the connecting rod, the connecting pipe 2 of the oil seal transition sleeve 1 is tightly matched with the connecting rod, the end part of the connecting rod can be well covered by the oil seal transition sleeve 1, then the oil seal is sheathed onto the guide pipe 4 and pushed forward, the oil seal can well slide through the transition pipe 3 and be transited to the connecting pipe 2, and the oil seal slides onto the connecting rod after sliding through the connecting pipe 2, so that the oil seal transition sleeve 1 well plays a transitional role, the integrity of the oil seal can be guaranteed to the greatest extent, the sealing effect can be improved, and the product quality of the shock absorber can be conveniently promoted. In the concrete implementation, the lengths of the connecting pipe 2, the transition pipe 3 and the guide pipe 4 of the oil seal transition sleeve 1 can be processed according to actual working conditions, and no further description is given here. The oil seal and the connecting rod of the shock absorber both belong to the prior art, and are not specifically described herein.
In order to facilitate processing, the oil seal transition sleeve 1 is made of a thin-wall stainless steel pipe, and the connecting pipe 2 and the transition pipe 3 are formed by processing through an expanding procedure. In this embodiment, the oil blanket transition cover 1 adopts thin wall stainless steel pipe to make and can satisfy the in-service use demand better, and the stainless steel has good tensile rate, can be convenient for expand mouthful processing and form connecting pipe 2 and transition pipe 3, and stainless steel intensity is good, can make oil blanket transition cover 1 durable, drop and do not hinder, and the stainless steel still has characteristics such as clean, nonrust, magnetism in addition, and connecting pipe 2 and the transition pipe 3 of oil blanket transition cover 1 are formed through expanding mouthful process processing, and the processing of being convenient for is difficult for scrapping, can improve machining efficiency greatly. The thin-walled stainless steel tube belongs to the prior art and is not specifically described herein.
As a preferred solution, the end of the guide tube 4 remote from the transition tube 3 is rolled to form a rounded corner. In this embodiment, the end of the guide tube 4 is rolled to form the rounded corner and the rounded corner 5, so that the oil seal is prevented from being scratched by sharp edges during assembly, which is advantageous for better ensuring the integrity of the oil seal. The rolling rounded corners belong to the prior art and are not described in detail herein.
In order to facilitate the processing of the expansion port and have enough structural strength, the oil seal transition sleeve 1 is made of a thin-wall stainless steel tube with the thickness of 0.2 mm. In this embodiment, the oil seal transition sleeve 1 adopts a 0.2mm thick thin-wall stainless steel tube, which can ensure excellent stretching rate, is convenient for expanding the mouth to process and form the connecting tube 2 and the transition tube 3, and also has enough structural strength, so that the oil seal transition sleeve 1 is durable.
The utility model provides an oil blanket transition is bloated mouthful frock for cover processing, includes lower mould lower carriage, lower mould upper carriage, support column 6, positioning seat, spring 7, locating lever 8, bloated mouthful mould 9 and go up die bottom plate 10 of upper and lower activity, the bottom of support column 6 sets firmly on the lower mould lower carriage, the top detachably of support column 6 sets firmly the lower mould upper carriage, the bottom detachably of positioning seat sets firmly the middle part of lower mould lower carriage, the bottom of positioning seat has installation cavity 11, the top have with the mounting hole 12 of locating lever 8 adaptation, the diameter that the bottom of locating lever 8 has cylindrical sliding table 13 and sliding table 13 is greater than the diameter of locating lever 8, sliding table 13 installs in the installation cavity 11, the locating lever 8 of sliding table 13 top side upwards passes mounting hole 12, spring 7 installs in the installation cavity 11, the top of spring 7 conflict in the bottom of sliding table 13, the bottom conflict is in the lower mould lower carriage, be equipped with on the lower mould upper carriage just to be equipped with on the support lever 8 the diameter of locating lever 8 just is greater than the diameter of locating lever 8, the diameter of die bottom plate 9 is gone up die bottom plate 9 and is equipped with the die bottom plate is gone up and is passed down in die bottom plate 9.
In the technical scheme, the upper die bottom plate 10 can drive the expansion die 9 to move up and down together when moving up and down, the supporting hole plays a role in guiding the up and down movement of the expansion die 9, the positioning rod 8 drives the sliding table 13 to move downwards, the sliding table 13 can compress the spring 7 in the mounting cavity 11, the mounting hole 12 plays a role in guiding the up and down movement of the positioning rod 8, the diameter of the sliding table 13 is larger than that of the mounting hole 12, thus the sliding table 13 is limited in the mounting cavity 11, a thin-wall stainless steel pipe to be processed is sleeved on the positioning rod 8 during processing, the stainless steel pipe is in clearance fit with the positioning rod 8, the bottom of the stainless steel pipe is abutted against the positioning seat, the positioning rod 8 is arranged to well position the stainless steel pipe, the expansion die 9 is driven to move downwards together by the upper die bottom plate 10 for the expansion die 9 to perform the expansion processing of the stainless steel pipe, the bottom of the expansion die 9 stretches into the stainless steel pipe and touches the top of the positioning rod 8, the positioning rod 8 compresses the spring 7 through the sliding table 13 when the positioning rod 8 is propped downwards, the expansion die 9 is driven to move upwards together through the upper die bottom plate 10 when the expansion processing is finished, the stainless steel pipe moves upwards together with the expansion die 9, the lower die upper seat can prop the stainless steel pipe to enable the stainless steel pipe to be separated from the expansion die 9, so that the oil seal transition sleeve 1 meeting the actual requirements can be conveniently processed, the elastic support at the bottom of the positioning rod 8 is convenient for the positioning rod 8 to move up and down, the stainless steel pipe can be better positioned, the expansion processing of the stainless steel pipe can be not influenced by the expansion die 9, and when the oil seal transition sleeve 1 with different specifications needs to be processed, the corresponding lower die upper seat, the positioning rod 8 and the expansion die 9 are only needed to be disassembled and replaced, the processing efficiency can be conveniently and quickly improved, therefore, by adopting the technical scheme, the oil seal transition sleeve 1 meeting the actual requirements can be efficiently processed, and the oil seal transition sleeves 1 with different specifications can be conveniently processed after the tool is replaced, so that the actual processing requirements can be better met. In the concrete implementation, the upper die bottom plate 10 is driven to move up and down by hydraulic drive, and the front end of an oil cylinder shaft of the hydraulic cylinder is fixedly connected with the upper die bottom plate 10.
For being convenient for expand mouth processing forms connecting pipe 2 and transition pipe 3, the expansion die 9 includes expansion mouth pole 14 and is located the expansion mouth of expansion mouth pole 14 bottom, the top of expansion mouth pole 14 is fixed through threaded connection in the bottom of last die baseplate 10, the expansion mouth includes guide head, first expansion mouth 15 and second expansion mouth 16, the guide head includes guide table 17 and guide bar 18, the bottom of expansion mouth pole 14 is equipped with second expansion mouth 16, the bottom of second expansion mouth 16 is equipped with first expansion mouth 15, the bottom of first expansion mouth 15 is equipped with guide bar 18, the bottom of guide bar 18 is equipped with guide table 17, guide table 17 and first expansion mouth 15 all are the round platform shape, the diameter of guide bar 18 is the same with the diameter of locating lever 8, the diameter of guide bar 18 is less than the diameter of expansion mouth pole 14, the diameter of expansion mouth pole 14 is less than the diameter of second expansion mouth 16, the diameter of first expansion mouth 15 top is equipped with the guide table 17 the diameter of second expansion mouth 16, the diameter of first expansion mouth 15 is the same with the diameter of second expansion mouth 16, the bottom of first expansion mouth 15 is equipped with the chamfer of the bottom of expansion mouth 17, the chamfer is the same. In the embodiment, the upper die bottom plate 10 drives the expansion die 9 to move downwards together, the expansion head at the bottom of the expansion die 9 can perform expansion processing on the stainless steel pipe, the peripheral chamfer at the top end of the second expansion die 16 and the chamfer at the bottom of the guide table 17 can eliminate sharp edges, the guide table 17 in the shape of a circular table can play a guiding role, the guide table 17 and the guide rod 18 can enter the top of the stainless steel pipe in sequence, the expansion die 9 continues to move downwards, the first expansion die 15 can perform primary expansion processing on the stainless steel pipe, the first expansion die 15 in the shape of a circular table can gradually expand the expansion of the stainless steel pipe, the second expansion die 16 can further expand the stainless steel pipe, the diameter of the top end of the first expansion die 15 is the same as that of the second expansion die 16, the diameter of the top end of the first expansion die 15 can well transition from the first expansion die 15 to the second expansion die 16 during expansion processing, when a guide table 17 extending into the stainless steel pipe touches the top of the positioning rod 8 and pushes the positioning rod 8 downwards, the positioning rod 8 compresses the spring 7 through the sliding table 13, the upper die bottom plate 10 drives the expansion die 9 to move downwards to the designated lowest position to finish expansion processing, at the moment, the first expansion die 15 expands to form the transition pipe 3 of the oil seal transition sleeve 1, the upper end of the transition pipe 3 forms the connecting pipe 2 of the oil seal transition sleeve 1, the lower end of the transition pipe 3 does not expand to form the guide pipe 4, and therefore the oil seal transition sleeve 1 meeting the actual use requirements can be obtained, the structural design of the expansion die 9 is reasonable, and the expansion processing can be well performed through the arrangement of the first expansion die 15 and the second expansion die 16. In the concrete implementation, the top end of the expansion port rod 14 is provided with a threaded hole, and the upper die bottom plate 10 is provided with a countersunk through hole, so that the expansion port rod 14 can be fixed to the bottom of the upper die bottom plate 10 through bolts.
For the frock of being convenient for dismouting and changing, the positioning seat divide into first positioning seat 19 and second positioning seat 20, the bottom of first positioning seat 19 is fixed through threaded connection the middle part of lower mould lower seat, second positioning seat 20 is fixed through threaded connection the top of first positioning seat 19, the middle part of second positioning seat 20 runs through and forms mounting hole 12, the middle part of first positioning seat 19 runs through and forms installation cavity 11. In this embodiment, through with the positioning seat split for first positioning seat 19 and second positioning seat 20, can only change second positioning seat 20 and need not dismantle first positioning seat 19 with the dismouting when the oil blanket transition cover 1 of different specifications of needs processing, convenient and fast, first positioning seat 19 and second positioning seat 20 threaded connection can be convenient for the dismouting, raise the efficiency.
In order to facilitate the threaded connection of the first positioning seat 19 and the second positioning seat 20, a first connecting sleeve 21 is arranged at the top of the first positioning seat 19, an external thread is arranged on the outer wall of the first connecting sleeve 21, an annular connecting groove is formed in the outer side of the first connecting sleeve 21, a second connecting sleeve 22 matched with the connecting groove is arranged at the bottom of the second positioning seat 20, and an internal thread matched with the external thread is arranged on the inner wall of the second connecting sleeve 22. In this embodiment, the outer wall of the first connecting sleeve 21 is provided with external threads, the inner wall of the second connecting sleeve 22 is provided with internal threads, and the second connecting sleeve 22 can be directly screwed onto the first connecting sleeve 21 to fixedly connect the first positioning seat 19 with the second positioning seat 20 during assembly, so that the structure design is reasonable, the disassembly and assembly are convenient and quick, and the actual requirements can be better met.
As a preferable technical scheme, the lower die lower base comprises a first lower die lower base plate 23 and a second lower die lower base plate 24, a first mounting groove 25 and a second mounting groove 26 which penetrate are arranged on the first lower die lower base plate 23, the bottom of the first positioning base 19 is arranged in the first mounting groove 25, the bottom of the support column 6 is arranged in the second mounting groove 26, the second lower die lower base plate 24 is fixedly arranged at the bottom side of the first lower die lower base plate 23, a first threaded hole 37 is arranged at the bottom of the first positioning base 19, a first countersunk through hole 27 which is opposite to the first threaded hole 37 is arranged on the second lower die lower base plate 24, a second threaded hole 28 is arranged at the bottom of the support column 6, a second countersunk through hole 29 which is opposite to the second threaded hole 28 is arranged on the second lower die lower base plate 24, the lower die upper seat comprises a first lower die upper bottom plate 30 and a second lower die upper bottom plate 31, a third through installation groove 32 is formed in the first lower die upper bottom plate 30, the top of the support column 6 is installed in the third installation groove 32, the second lower die upper bottom plate 31 is fixedly arranged on the top side of the first lower die upper bottom plate 30, a third threaded hole 33 is formed in the top of the support column 6, a third countersunk through hole 34 opposite to the third threaded hole 33 is formed in the second lower die upper bottom plate 31, a first support hole 35 matched with the expansion die 9 is formed in the middle of the first lower die upper bottom plate 30, and a second support hole 36 matched with the expansion die 9 is formed in the middle of the second lower die upper bottom plate 31. In this embodiment, the bottom of the first positioning seat 19 can be fixed to the second lower die lower bottom plate 24 by screwing the bolt into the first threaded hole 37 through the first countersunk through hole 27, the bottom of the support column 6 can be fixed to the second lower die lower bottom plate 24 by screwing the bolt into the second threaded hole 28 through the second countersunk through hole 29, the top of the support column 6 can be fixed to the second lower die upper bottom plate 31 by screwing the bolt into the third threaded hole 33 through the third countersunk through hole 34, the first lower die lower bottom plate 23 and the second lower die lower bottom plate 24 are fixedly connected, the bottom of the first positioning seat 19 is installed in the first installation groove 25, the first lower die lower bottom plate 23 can play a supporting and limiting role on the first positioning seat 19, the bottom of the support column 6 is installed in the second installation groove 26, the first lower die lower bottom plate 23 can play a supporting and limiting role on the support column 6, the top of the support column 6 is installed in the third lower installation groove 32, the first lower die lower bottom plate 30 can be better detached and the second lower die bottom plate 30 can be better, the first lower die bottom plate 30 can be better detached and the first lower die bottom plate 30 can be better installed on the first lower die bottom plate 30, the first lower die bottom plate 30 can be better detached and the first lower die bottom plate 30 can be better required to be better detached, and the first lower die bottom plate is better installed on the first lower die bottom plate 30. In specific implementation, the first lower die lower bottom plate 23 and the second lower die lower bottom plate 24 are fixed on the hydraulic press platform, so that expansion opening processing can be facilitated.
As a preferable solution, the diameter of the first supporting hole 35 is the same as the diameter of the second expansion portion 16, the diameter of the second supporting hole 36 is larger than the diameter of the first supporting hole 35, and the top of the second supporting hole 36 is chamfered. In this embodiment, the diameter of the first supporting hole 35 is the same as the diameter of the second expansion part 16 and the second expansion part 16 can pass through the first supporting hole 35, the diameter of the second supporting hole 36 is larger than the diameter of the first supporting hole 35, the upward and downward movement of the expansion die 9 is guided by the first supporting hole 35, and the top chamfer of the second supporting hole 36 can facilitate the downward insertion of the expansion die 9 into the second supporting hole 36.
The fixing manner or the fixing connection manner not described in the embodiment may be threaded connection or welding, or other existing connection manners may be adopted according to specific positions, and the threaded connection and the welding are all in the prior art, which is not described in detail herein.
The working mode is as follows: during processing, a thin-wall stainless steel pipe to be processed is sleeved on the positioning rod 8, the bottom of the stainless steel pipe is abutted against the second positioning seat 20, the upper die bottom plate 10 is driven to move up and down through hydraulic drive, the upper die bottom plate 10 drives the expansion die 9 to move downwards, the expansion head at the bottom of the expansion die 9 can carry out expansion processing on the stainless steel pipe, the expansion head is reasonable in structural design, the expansion processing is convenient to form the connecting pipe 2 and the transition pipe 3, and then the oil seal transition sleeve 1 meeting actual requirements can be conveniently processed, when the oil seal transition sleeve 1 with different specifications is required to be processed, only the positioning rod 8, the second positioning seat 20, the expansion die 9, the first lower die upper bottom plate 30 and the second lower die upper bottom plate 31 are required to be disassembled and assembled, the processing efficiency can be greatly improved, and therefore, the oil seal transition sleeve 1 meeting the actual requirements can be effectively processed through adopting the technical scheme, and the oil seal transition sleeve 1 with different specifications can be conveniently processed after the tool is replaced so that the shock absorber products with different types can better meet the actual processing requirements.
The skilled person will know: while the invention has been described in terms of the foregoing embodiments, the inventive concepts are not limited to the invention, and any modifications that use the inventive concepts are intended to be within the scope of the appended claims.
Claims (6)
1. The utility model provides an oil blanket transition cover processing is with expanding mouthful frock which characterized in that: the oil seal transition sleeve is of a thin-wall hollow structure and comprises a connecting pipe, a transition pipe and a guide pipe, wherein one end of the transition pipe is provided with the connecting pipe, the other end of the transition pipe is provided with the guide pipe, the diameter of the connecting pipe is larger than that of the guide pipe, and the transition pipe is in a truncated cone shape; the oil seal transition sleeve is made of a thin-wall stainless steel pipe, and the connecting pipe and the transition pipe are formed by processing through an expanding procedure;
the expanding tooling comprises a lower die lower seat, a lower die upper seat, a supporting column, a positioning seat, a spring, a positioning rod, an expanding die and an upper die bottom plate which moves up and down, wherein the bottom end of the supporting column is fixedly arranged on the lower die lower seat, the top end of the supporting column is detachably fixedly arranged on the lower die upper seat, the bottom of the positioning seat is detachably fixedly arranged in the middle of the lower die lower seat, the bottom of the positioning seat is provided with a mounting cavity, the top of the positioning seat is provided with a mounting hole matched with the positioning rod, the bottom end of the positioning rod is provided with a cylindrical sliding table, the diameter of the sliding table is larger than that of the positioning rod, the sliding table is mounted in the mounting cavity, the positioning rod on the top side of the sliding table upwards passes through the mounting hole, the spring is mounted in the mounting cavity, the top end of the spring is abutted against the bottom of the sliding table, the bottom end of the lower die upper seat is provided with a supporting hole which is opposite to the positioning rod, the upper bottom plate is positioned above the lower die upper seat, and the expanding die bottom of the upper die bottom plate is detachably provided with a supporting hole which can downwards pass through the expanding die; the positioning seat is divided into a first positioning seat and a second positioning seat, the bottom of the first positioning seat is fixed at the middle part of the lower seat of the lower die through threaded connection, the second positioning seat is fixed at the top of the first positioning seat through threaded connection, the middle part of the second positioning seat penetrates through to form the mounting hole, and the middle part of the first positioning seat penetrates through to form the mounting cavity;
the mouth-expanding die comprises a mouth-expanding rod and a mouth-expanding head positioned at the bottom end of the mouth-expanding rod, the top end of the mouth-expanding rod is fixed at the bottom of the upper die bottom plate through threaded connection, the mouth-expanding head comprises a guide head, a first mouth-expanding part and a second mouth-expanding part, the guide head comprises a guide table and a guide rod, the bottom of the mouth-expanding rod is provided with the second mouth-expanding part, the bottom of the second mouth-expanding part is provided with the first mouth-expanding part, the bottom of the first mouth-expanding part is provided with the guide rod, the bottom of the guide rod is provided with the guide table, the guide table and the first expansion part are in a round table shape, the diameter of the guide rod is the same as that of the positioning rod, the diameter of the guide rod is smaller than that of the expansion part, the diameter of the expansion part is smaller than that of the second expansion part, the diameter of the top end of the first expansion part is the same as that of the second expansion part, the diameter of the bottom end of the first expansion part is the same as that of the guide rod, the bottom of the guide table is chamfered, and the periphery of the top end of the second expansion part is chamfered.
2. The expansion tool for processing an oil seal transition sleeve according to claim 1, wherein: and one end of the guide pipe far away from the transition pipe is rolled to form a round angle.
3. The expansion tool for processing an oil seal transition sleeve according to claim 2, wherein: the oil seal transition sleeve is made of a thin-wall stainless steel tube with the thickness of 0.2 mm.
4. The expansion tool for processing an oil seal transition sleeve according to claim 1, wherein: the top of first positioning seat is equipped with first adapter sleeve, is equipped with the external screw thread on the outer wall of first adapter sleeve, and the outside of first adapter sleeve forms annular spread groove, the bottom of second positioning seat be equipped with the second adapter sleeve of spread groove adaptation, be equipped with on the inner wall of second adapter sleeve with the internal screw thread of external screw thread adaptation.
5. The expansion tool for processing an oil seal transition sleeve according to claim 4, wherein: the lower die lower seat comprises a first lower die lower bottom plate and a second lower die lower bottom plate, a first through installation groove and a second through installation groove are formed in the first lower die lower bottom plate, the bottom of the first positioning seat is installed in the first installation groove, the bottom of the support column is installed in the second installation groove, the second lower die lower bottom plate is fixedly arranged on the bottom side of the first lower die lower bottom plate, a first threaded hole is formed in the bottom of the first positioning seat, a first countersunk through hole right facing the first threaded hole is formed in the second lower die lower bottom plate, a second countersunk through hole right facing the second threaded hole is formed in the bottom of the support column, the lower die upper seat comprises a first lower die upper bottom plate and a second lower die upper bottom plate, a third through installation groove is formed in the first lower die upper bottom plate, the top of the support column is installed in the third installation groove, a second lower die upper bottom plate is fixedly arranged on the top side of the first lower die upper bottom plate, a second countersunk through hole is formed in the second lower die upper bottom plate, and a second countersunk through hole is formed in the middle of the second lower die upper bottom plate, and a second countersunk through hole is formed in the second lower die upper bottom plate.
6. The expansion tool for processing an oil seal transition sleeve according to claim 5, wherein: the diameter of the first supporting hole is the same as that of the second expanding part, the diameter of the second supporting hole is larger than that of the first supporting hole, and the top of the second supporting hole is chamfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110568087.2A CN113426891B (en) | 2021-05-25 | 2021-05-25 | Oil seal transition sleeve and processing expansion tool thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110568087.2A CN113426891B (en) | 2021-05-25 | 2021-05-25 | Oil seal transition sleeve and processing expansion tool thereof |
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| Publication Number | Publication Date |
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| CN113426891A CN113426891A (en) | 2021-09-24 |
| CN113426891B true CN113426891B (en) | 2023-05-09 |
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| CN202110568087.2A Active CN113426891B (en) | 2021-05-25 | 2021-05-25 | Oil seal transition sleeve and processing expansion tool thereof |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001137978A (en) * | 1999-11-08 | 2001-05-22 | Daido Steel Co Ltd | Metal tube expanding tool |
| CN208391920U (en) * | 2018-05-29 | 2019-01-18 | 北京汽车股份有限公司 | Damper assembly tooling |
| CN209006538U (en) * | 2018-10-18 | 2019-06-21 | 淅川县金利管业有限公司 | A kind of whole diameter tooling of flaring |
| CN109277819B (en) * | 2018-10-24 | 2019-12-17 | 宁波市百孚车业有限公司 | assembling method of ZD45S006 type automobile shock absorber |
| CN209130106U (en) * | 2018-11-26 | 2019-07-19 | 南阳淅减汽车减振器有限公司 | A kind of shock absorber packing gland installing mechanism |
| CN210231284U (en) * | 2019-06-21 | 2020-04-03 | 恒盟(天津)科技发展有限公司 | Mouth expanding machine with detachable mouth expanding pipe |
| CN212917323U (en) * | 2020-07-22 | 2021-04-09 | 深圳市大富方圆成型技术有限公司 | Hollow tube flaring device |
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